Node.js
/Beginner
Creating HTTP Servers
Definition
The process of binding a Node.js application to a network port so it can listen for and respond to incoming HTTP requests from web browsers or API clients.
Explain Like I'm New
An HTTP server is a receptionist sitting at a desk (a Port, like 3000). When a customer (a web browser) walks in and says 'I want the homepage', the receptionist looks at the request, runs to the back room, grabs the homepage HTML, and hands it back.
Real World Example
Creating a backend for a React application. The React app runs on port 3000, and makes `fetch()` requests to your Node API running on port 8080 to get JSON data.
Common Use Cases
- •Building Web APIs
- •Serving static HTML websites
- •Creating Microservices
Interactive Example
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Interview Questions
basic
- What method is used to bind the server to a port?
intermediate
- What happens if two servers try to listen on the exact same port?